| /* |
| * Copyright 2014-2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.cordvtn; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.host.HostEvent; |
| import org.onosproject.net.host.HostListener; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.EventuallyConsistentMap; |
| import org.onosproject.store.service.LogicalClockService; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.stream.Collectors; |
| |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.cordvtn.OvsdbNode.State; |
| import static org.onosproject.cordvtn.OvsdbNode.State.INIT; |
| import static org.onosproject.cordvtn.OvsdbNode.State.DISCONNECT; |
| import static org.onosproject.net.Device.Type.SWITCH; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides initial setup or cleanup for provisioning virtual tenant networks |
| * on ovsdb, integration bridge and vm when they are added or deleted. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class CordVtn implements CordVtnService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final int NUM_THREADS = 1; |
| private static final KryoNamespace.Builder NODE_SERIALIZER = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(OvsdbNode.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LogicalClockService clockService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| private final ExecutorService eventExecutor = Executors |
| .newFixedThreadPool(NUM_THREADS, groupedThreads("onos/cordvtn", "event-handler")); |
| |
| private final DeviceListener deviceListener = new InternalDeviceListener(); |
| private final HostListener hostListener = new InternalHostListener(); |
| |
| private final OvsdbHandler ovsdbHandler = new OvsdbHandler(); |
| private final BridgeHandler bridgeHandler = new BridgeHandler(); |
| private final VmHandler vmHandler = new VmHandler(); |
| |
| private EventuallyConsistentMap<DeviceId, OvsdbNode> nodeStore; |
| |
| @Activate |
| protected void activate() { |
| coreService.registerApplication("org.onosproject.cordvtn"); |
| nodeStore = storageService.<DeviceId, OvsdbNode>eventuallyConsistentMapBuilder() |
| .withName("cordvtn-nodestore") |
| .withSerializer(NODE_SERIALIZER) |
| .withTimestampProvider((k, v) -> clockService.getTimestamp()) |
| .build(); |
| |
| deviceService.addListener(deviceListener); |
| hostService.addListener(hostListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| deviceService.removeListener(deviceListener); |
| hostService.removeListener(hostListener); |
| |
| eventExecutor.shutdown(); |
| nodeStore.destroy(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void addNode(OvsdbNode ovsdbNode) { |
| if (nodeStore.containsKey(ovsdbNode.deviceId())) { |
| log.warn("Node {} already exists", ovsdbNode.host()); |
| return; |
| } |
| nodeStore.put(ovsdbNode.deviceId(), ovsdbNode); |
| if (ovsdbNode.state() != INIT) { |
| updateNode(ovsdbNode, INIT); |
| } |
| } |
| |
| @Override |
| public void deleteNode(OvsdbNode ovsdbNode) { |
| if (!nodeStore.containsKey(ovsdbNode.deviceId())) { |
| log.warn("Node {} does not exist", ovsdbNode.host()); |
| return; |
| } |
| updateNode(ovsdbNode, DISCONNECT); |
| } |
| |
| @Override |
| public void updateNode(OvsdbNode ovsdbNode, State state) { |
| if (!nodeStore.containsKey(ovsdbNode.deviceId())) { |
| log.warn("Node {} does not exist", ovsdbNode.host()); |
| return; |
| } |
| DefaultOvsdbNode updatedNode = new DefaultOvsdbNode(ovsdbNode.host(), |
| ovsdbNode.ip(), |
| ovsdbNode.port(), |
| state); |
| nodeStore.put(ovsdbNode.deviceId(), updatedNode); |
| } |
| |
| @Override |
| public int getNodeCount() { |
| return nodeStore.size(); |
| } |
| |
| @Override |
| public OvsdbNode getNode(DeviceId deviceId) { |
| return nodeStore.get(deviceId); |
| } |
| |
| @Override |
| public List<OvsdbNode> getNodes() { |
| return nodeStore.values() |
| .stream() |
| .collect(Collectors.toList()); |
| } |
| |
| private class InternalDeviceListener implements DeviceListener { |
| |
| @Override |
| public void event(DeviceEvent event) { |
| Device device = event.subject(); |
| ConnectionHandler handler = (device.type() == SWITCH ? bridgeHandler : ovsdbHandler); |
| |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| eventExecutor.submit(() -> handler.connected(device)); |
| break; |
| case DEVICE_AVAILABILITY_CHANGED: |
| eventExecutor.submit(() -> handler.disconnected(device)); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class InternalHostListener implements HostListener { |
| |
| @Override |
| public void event(HostEvent event) { |
| Host vm = event.subject(); |
| |
| switch (event.type()) { |
| case HOST_ADDED: |
| eventExecutor.submit(() -> vmHandler.connected(vm)); |
| break; |
| case HOST_REMOVED: |
| eventExecutor.submit(() -> vmHandler.disconnected(vm)); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class OvsdbHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| // create bridge and set bridgeId |
| // set node state connected |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| // set node state disconnected if the node exists |
| // which means that the node is not deleted explicitly |
| } |
| } |
| |
| private class BridgeHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| // create vxlan port |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| |
| } |
| } |
| |
| private class VmHandler implements ConnectionHandler<Host> { |
| |
| @Override |
| public void connected(Host host) { |
| // install flow rules for this vm |
| } |
| |
| @Override |
| public void disconnected(Host host) { |
| // uninstall flow rules associated with this vm |
| } |
| } |
| } |